BPTES - Glutaminase 抑制剂 - 生命科学试剂 - MedChemExpress

1、Hotline: 400-820-3792Inhibitors Agonists Screening Librarieswww.MedChemEBPTESCat. No.: HY-12683CAS No.: 314045-39-1分式: CHNOS分量: 524.68作靶点: Glutaminase作通路: Metabolic Enzyme/Protease储存式: Powder -20C 3 years4C 2 yearsIn solvent -80C 6 months-20C 1 month溶解性数据体外实验 DMSO : 50 mg/mL (95.30 mM; Need ultrason

2、ic)H2O : 90% corn oilSolubility: 2.5 mg/mL (4.76 mM); Clear solutionBIOLOGICAL ACTIVITY1/3 Master of Small Molecules 您边的抑制剂师www.MedChemE物活性 BPTES选择性的氨酰胺酶变构抑制剂，IC50 为0.16 M。IC50 & Target Glutaminase 1体外研究 BPTES (10 M) exhibits inhibition of PDAC cell proliferation 1. BPTES preferentially slows growth

3、 of mutantIDH1 cells without inducing apoptosis. BPTES (10 M) reduces glutaminase activity in both WT and mutantIDH1 expressing cells, diminishes glutamate and -KG levels, and increases glycolytic intermediates whileleaving total 2-HG levels unaffected 2. BPTES (10 M) shows a clear synergistic anti-

4、cancer effect with 10 M of 5-FU in A549 and EKVX cell lines, and results in a growth reduction response not only in EKVX and A549but also in most of the NSCLC cell lines 3. BPTES (10 M) effectively reduces the levels of the metabolites ofthe TCA cycle, with no changes in the levels of metabolites in

5、 glycolysis and the pentose phosphate pathway.BPTES treatment reduces about 30% ATP production under normoxia, and an additional 10% reduction ofATP production is observed under hypoxia in EKVX 4.体内研究 BPTES-NPs (BPTES nanoparticles, 1.2 mg BPTES in 100 L nanoparticles, i.v.) significantly attenuates

6、 tumorgrowth in the patient-derived pancreatic orthotopic tumor model 1.PROTOCOLKinase Assay 2 D54 cells are seeded in a T75 flask at 5105 cells, and IDH1 expression is induced with doxycycline 48 hrsbefore assaying. Cells are collected and resuspended in PBS, 0.1% Triton X-100, and Halt-ProteaseInh

7、ibitor. Cells are lysed for 30 min on ice and centrifuged for 30 min at 12000 rpm at 4C. Proteinconcentration is measured using the BCA Assay. Varying amounts of protein are added to IDH activity assaybuffer (33 mM Tris, pH 7.6, 0.33 mM EDTA, 0.1 mM NADP+, 1.33 mM MnCl2, and 1.3 mM isocitrate), andc

8、hanges in absorbance at 340 nm after 5 min is documented for each protein amount.MCE has not independently confirmed the accuracy of these methods. They are for reference only.Cell Assay 2 Cells are plated at a density of 500 cells/well in a 96-well black clear bottom plate. At 24 hrs, media ischang

9、ed to the appropriate media (DMEM with 4.5 g/L, 1.5 g/L or 0.1 g/L glucose, 10% FBS,pencillin/streptomycin, and 4 mM glutamine with or without doxycyline). 48 hours after plating, compounds orDMSO are added. Media and alamarBlue is added to a volume of 200 L in each well. Fluorescence ismeasured at

10、48 hrs or 72 hrs (EGCG) using a Victor3 plate-reader.MCE has not independently confirmed the accuracy of these methods. They are for reference only.Animal Four-week-old female Foxn1nuathymic nude mice are used for the assay. Freshly resected pancreatic tumorAdministration 1 samples obtained from pat

11、ients at the time of surgery are propagated from mouse to mouse as a live tumorbank. Once a tumor volume of 50 mm3 is reached (4 wk postimplantation), mice are treated with 12.5 mg/kgBPTES by intraperitoneal injection, 200 mg/kg CB-839 twice per d by oral gavage, 54 mg/kg BPTES-NPs(1.2 mg BPTES in 1

12、00 L nanoparticles per mouse) by intravenous injection, blank-NPs (100 L per mouse)by intravenous injection, 25 mg/kg gemcitabine intraperitoneally, 250 mg/kg metformin intraperitoneally daily,or a combination of BPTES-NPs with gemcitabine or metformin. BPTES-NPs are injected once every 3 d fora tot

13、al of six injections over 16 d.MCE has not independently confirmed the accuracy of these methods. They are for reference only.2/3 Master of Small Molecules 您边的抑制剂师www.MedChemEREFERENCES1. Elgogary A, et al. Combination therapy with BPTES nanoparticles and metformin targets the metabolic heterogeneit

14、y of pancreaticcancer. Proc Natl Acad Sci U S A. 2016 Sep 6;113(36):E5328-36.2. Meghan J. Seltzer, et al. Inhibition of glutaminase preferentially slows growth of glioma cells with mutant IDH1. Cancer Res. 2010 Nov15; 70(22): 8981-8987.3. Lee JS, et al. Glutaminase 1 inhibition reduces thymidine synthesis in NSCLC. Biochem Biophys Res Commun. 2016 Aug26;477(3):374-824. Lee JS, et al. Dual targeting of glutaminase 1 and thymidylate synthase elicits death synergistically in NSCLC. Cell Death Dis. 201